review of related literature of coconut shell

Abstract

Natural resources such as river sand and coarse aggregate are depleting at an alarming level in developing countries like India. The possibility of utilizing recycled coconut shell aggregates in concrete as coarse aggregate is examined in the present study. An optimum percentage replacement of coarse aggregate with coconut shell aggregate is determined from the study. Coarse aggregate made from coconut shells were used in proportions of 5%, 10%, 15%, 20%, 25%, 30% and 35% to replace coarse aggregate in conventional concrete. A constant water to cement ratio of 0.5 was used throughout the study. Tests were carried out to determine the compressive strength, split tensile strength and flexural strength using cube, cylinder and beam specimens respectively. Together, 24 cubes, 21 cylinders and 21 beam samples were tested. It was observed that when coconut shells aggregates in proportions of 15% was used in conventional concrete, compressive strengths comparable to that of conventional concrete can be obtained.